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What is the difference between Python's list methods append and extend?
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append: Appends object at the end.
x = [1, 2, 3]
x.append([4, 5])
print (x)
gives you: [1, 2, 3, [4, 5]]
extend: Extends list by appending elements from the iterable.
x = [1, 2, 3]
x.extend([4, 5])
print (x)
gives you: [1, 2, 3, 4, 5]
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Bash: If/Else statement in one line
...e it is called some_process ) is running on a server. If it is, then echo 1, otherwise echo 0.
5 Answers
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How to stop text from taking up more than 1 line?
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edited Jan 20 '18 at 21:02
diralik
2,86222 gold badges1313 silver badges3838 bronze badges
an...
pass **kwargs argument to another function with **kwargs
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163
In the second example you provide 3 arguments: filename, mode and a dictionary (kwargs). But P...
Is \d not supported by grep's basic expressions?
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197
grep's default mode is (iirc) POSIX regex, and \d is pcre. You can either pass -P to gnu grep,...
'float' vs. 'double' precision
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146
Floating point numbers in C use IEEE 754 encoding.
This type of encoding uses a sign, a signi...
How to use Bash to create a folder if it doesn't already exist?
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edited Aug 25 '16 at 4:17
pcambra
50655 silver badges1515 bronze badges
answered Feb 5 '11 at...
How to prevent browser page caching in Rails
...se.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "Mon, 01 Jan 1990 00:00:00 GMT"
end
end
Rails 4 and older versions:
class ApplicationController < ActionController::Base
before_filter :set_cache_headers
private
def set_cache_headers
response.headers["Cache-Con...
How to change the default font size in ggplot2
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118
Use theme_set()
theme_set(theme_gray(base_size = 18))
qplot(1:10, 1:10)
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How can I break an outer loop with PHP?
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answered May 4 '11 at 8:14
lucian303lucian303
3,01911 gold badge1414 silver badges1111 bronze badges
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